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Host Name Resolution

Overview#

Host Name Resolution is the process by which a host determines the IP Address of host given the host name.

Host Name Resolution is dependent on the Operating System and the current configuration.

  • Check whether the target host is the localhost
  • Check local hosts file - This check is performed only if a hosts file has been configured.
  • Contact DNS resolvers - This check is performed only if the a DNS resolver is configured
  • Check local NetBIOS name cache - This check is performed only if NetBIOS is configured
  • Contact NBNS - (Unique to Microsoft networks.) This check is performed if NBNS has been configured by creating a Windows Internet Name Service (WINS) record within the DNS database.
  • Perform local broadcast. (Unique to Microsoft networks.) - Local host broadcasts a NetBIOS name query request packet three times.
  • Check local lmhosts file. (Unique to Microsoft networks.) - This check is performed if an lmhosts file (local hosts file used by Microsoft WINS Clients) has been configured.

More Information#

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